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[c-host] adjust maximum size to account for alignment

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This commit is contained in:
Geoffrey McRae 2020-01-13 16:06:53 +11:00
parent ad8a8b52be
commit 17df1ebc6b
1 changed files with 7 additions and 5 deletions
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12
c-host/src/app.c
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@ -397,6 +397,7 @@ int app_main(int argc, char * argv[])
int exitcode = 0;
DEBUG_INFO("IVSHMEM Size : %u MiB", shmDev.size / 1048576);
DEBUG_INFO("IVSHMEM Address : 0x%" PRIXPTR, (uintptr_t)shmDev.mem);
DEBUG_INFO("Max Pointer Size : %u KiB", (unsigned int)MAX_POINTER_SIZE / 1024);
LGMP_STATUS status;
if ((status = lgmpHostInit(shmDev.mem, shmDev.size, &app.lgmp)) != LGMP_OK)
@ -433,10 +434,14 @@ int app_main(int argc, char * argv[])
goto fail;
}
app.maxFrameSize = ALIGN_DN(lgmpHostMemAvail(app.lgmp) / LGMP_Q_FRAME_LEN);
const long sz = sysinfo_getPageSize();
app.maxFrameSize = lgmpHostMemAvail(app.lgmp);
app.maxFrameSize = (app.maxFrameSize - (sz - 1)) & ~(sz - 1);
app.maxFrameSize /= LGMP_Q_FRAME_LEN;
DEBUG_INFO("Max Frame Size : %u MiB", (unsigned int)(app.maxFrameSize / 1048576LL));
for(int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
{
const long sz = sysinfo_getPageSize();
if ((status = lgmpHostMemAllocAligned(app.lgmp, app.maxFrameSize, sz, &app.frameMemory[i])) != LGMP_OK)
{
DEBUG_ERROR("lgmpHostMemAlloc Failed (Frame): %s", lgmpStatusString(status));
@ -444,9 +449,6 @@ int app_main(int argc, char * argv[])
}
}
DEBUG_INFO("Max Pointer Size : %u KiB", (unsigned int)MAX_POINTER_SIZE / 1024);
DEBUG_INFO("Max Frame Size : %u MiB", (unsigned int)(app.maxFrameSize / 1048576LL));
CaptureInterface * iface = NULL;
for(int i = 0; CaptureInterfaces[i]; ++i)
{